Complete biographies on each individual are available by clicking on his name above.

McElwain will complete the staff once he finalizes contractual details with a defensive coordinator. Once that individual is hired, McElwain will determine the position coaching responsibilities of Duffie and Hammerschmidt.

English, who began his college coaching career at Northern Colorado in 1987, joins the Rams from Wyoming, where he’d served since 2003, including the last three seasons as the Cowboys’ defensive coordinator. In 2011, he played a key role in Wyoming’s 31 takeaways, which led the Mountain West and tied for 10th in the nation.

Frazier, who coached first-round draft selection Logan Mankins (New England Patriots) among other standouts, is a graduate of Rocky Mountain High School in Fort Collins. He launched his career in 1997, and spent the last six seasons at Fresno State.

Hammerschmidt, a first-team all-Pac 10 selection as a player at Arizona, joins the Rams from the same program, where he’d spent the past four seasons as an assistant coach, helping the Wildcats to the Holiday, Alamo and Las Vegas bowls.

Whitted, a nine-year NFL veteran selected in the 1998 draft by Jacksonville and then-head coach Tom Coughlin, played for the Jaguars, Falcons and Raiders, where he spent his final season, with McElwain on staff. He played in two AFC championship games as well as Super Bowl XXXVII. A former world-class sprinter at N.C. State, he joins the Rams after a season as an offensive quality control assistant at UCLA.